QC 3.0 car charger Multi-function dual USB LED display voltmeter monitors Car cigarette lighter charger adapter car supplies Description: 100% new high quality Dual USB ports to charge both devices simultaneously The LED display monitors the car battery voltage in real time (when no device is connected for charging); the charging current is displayed when the phone is charging 3.1A ultra high current output, based on intelligent distribution of different devices, It immediately adjusts the output according to the saturation of the battery and charges you specification: Name: Car Charger Material: flame retardant ABS plastic Input voltage: DC 12V-24V Output voltage: 5V-3.1A Output current: 3.1A Size: 33*59mm Color: Silver Blue Black Gold Red Specifications: The device is strongly protected at high speeds. Unbelievable quality, more durable Intelligent surge protection through fuse mode, dual smart chip with high-speed charging Built-in overcurrent, overvoltage protection, support trickle charge, guarantee charge status The intelligent cooling system diipates the heat of the internal components of the car charger, And maintain the proper temperature state for normal operation and extended life. Wide compatibility for most mobile/tablets/MP3/MP4 and other digital devices Package Included: 1* car charger Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a meage before you give the bad feedback, if the products have some problems. Thanks for your understandings